/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.dolphinscheduler.dao.upgrade;

import org.apache.dolphinscheduler.common.utils.ConnectionUtils;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.time.Clock;
import java.util.HashMap;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ScheduleDao {

  public static final Logger logger = LoggerFactory.getLogger(ScheduleDao.class);

  /**
   * queryAllSchedule
   *
   * @param conn jdbc connection
   * @return Schedule List
   */
  public Map<Integer, Long> queryAllSchedule(Connection conn) {
    Map<Integer, Long> scheduleMap = new HashMap<>();
    String sql = "SELECT id,process_definition_code FROM t_ds_schedules";
    ResultSet rs = null;
    PreparedStatement pstmt = null;
    try {
      pstmt = conn.prepareStatement(sql);
      rs = pstmt.executeQuery();
      while (rs.next()) {
        Integer id = rs.getInt(1);
        long processDefinitionCode = rs.getLong(2);
        scheduleMap.put(id, processDefinitionCode);
      }
    } catch (Exception e) {
      logger.error(e.getMessage(), e);
      throw new RuntimeException("sql: " + sql, e);
    } finally {
      ConnectionUtils.releaseResource(rs, pstmt, conn);
    }
    return scheduleMap;
  }

  /**
   * update schedule
   *
   * @param conn             jdbc connection
   * @param scheduleMap      scheduleMap
   * @param processIdCodeMap processIdCodeMap
   */
  public void updateScheduleCode(Connection conn, Map<Integer, Long> scheduleMap, Map<Integer, Long> processIdCodeMap) {
    String sql = "UPDATE t_ds_schedules SET process_definition_code=?,timezone_id=?,environment_code=-1 where id=?";
    try {
      Clock clock = Clock.systemDefaultZone();
      String timezoneId = clock.getZone().getId();
      for (Map.Entry<Integer, Long> entry : scheduleMap.entrySet()) {
        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
          long projectDefinitionCode = entry.getValue();
          if (String.valueOf(projectDefinitionCode).length() <= 10) {
            Integer projectDefinitionId = Integer.parseInt(String.valueOf(projectDefinitionCode));
            if (processIdCodeMap.containsKey(projectDefinitionId)) {
              projectDefinitionCode = processIdCodeMap.get(projectDefinitionId);
            }
          }
          pstmt.setLong(1, projectDefinitionCode);
          pstmt.setString(2, timezoneId);
          pstmt.setInt(3, entry.getKey());
          pstmt.executeUpdate();
        }
      }
    } catch (Exception e) {
      logger.error(e.getMessage(), e);
      throw new RuntimeException("sql: " + sql, e);
    } finally {
      ConnectionUtils.releaseResource(conn);
    }
  }
}
